查询词典 particle

ABSTRACT Particle filter is a new real time inference algorithm which is based on Bayesian inference and Monte carlo method. Because of its unique characteristics such as flexible, easy to implement, parallelizable, extensive applicability and efficient to process nonlinear problems, particle filter has been paid more and more attention in recent years and becomes a new and very promising hot topic in applied statistics, signal processing, automatic control, artificial intelligence and machine learning communities. At the same time, the formidable increasing computational power and some recent developments in applied statistics and probability theory has stimulated many advances in this field.

始于20世纪90年代初的粒子滤波器技术是一种基于贝叶斯推理和蒙特卡罗方法的实时在线推理算法，因其具有灵活、易于实现、并行化、应用前景广阔以及有效处理非线性问题等特点，受到了越来越广泛的重视，成为统计学、信号处理、自动控制、人工智能、机器学习等领域新的研究热点，同时伴随着计算机计算能力的超指数增长以及应用统计学、概率论等一些学科的不断进步，使该领域的研究得到了迅速发展。

In the solidification process, liquid metal flow affects particle movement and final particle distribution.

在凝固过程中，液态金属运动对颗粒的运动和分布起了很重要的作用，但以往却被忽略了。

If a spherical particle moves with high speed, the laser DSS due to movement of the particle could not be neglected.

如果运动粒子的速度存在速度起伏，那么多普勒效应和频谱展宽起着相当重要的作用。

For further understanding the particle movement process, different sized particles movement track and particle concentration distribution are also studied.

为了进一步明确颗粒在流场中的运动状况，文中还对单颗粒运动轨迹和颗粒浓度分布进行了研究，并最终得到了一些有意义的结论。

The movement patten of particle group is calculated by using chaotic analyze method and the movement property of particle group is describe.

应用混沌分析方法对物料在强化筛中的运动规律进行了数值计算，并用其描述了颗粒的运动特性。

Purpose of paper is to develop a radial model of gel particle profile-control and to simulate the movement of gel particle near wellbore formation.

研究目的在于建立凝胶颗粒调剖的平面径向流数值模拟模型，模拟凝胶颗粒在近井地带的调剖规律。

This paper introduces the principle of particle system. The fountain movement in the true life was analyzed by physics dynamics. A fountain particle system has been developed based on VC++ and OpenGL.

阐述了粒子系统方法的基本原理，基于粒子系统方法，运用物体动力学分析了现实中喷泉的运动，设计并实现了一个基于VC++和OpenGL的喷泉粒子系统。

Pervious concrete is of good perviousness,it can release the problems of highway seeper and urban environment,so it is a sort of environmental protection concrete. Through comparison test of performance of mixtures with different single particle size,the result indicates that mixing single particle size mixtures is of a good many advantages.

透水混凝土具有良好的透水性，能够缓解公路积水和城市环境问题，是一种环保型的混凝土，通过对不同单粒径混合料的性能进行比较试验，结果表明，将单粒径混合料进行混合具有很多优点。

And then simulations of gas-particle two phase plane wake and gas-particle two phase plane jet were carried out by using this model.

在对流场特性进行全面分析的基础上，根据对气相流场采用大涡模拟，对颗粒相运动采用Lagrangian方法进行求解的思路，建立了二维气粒两相湍流流动数值模拟的数学模型。

By the Laplace transform method, the decreasing rule of particle displacement of seismic wave has been resolved and so does the rule of phase velocity, particle velocity in time and frequency domain respectively.

通过拉氏变换求得地震波质点位移的衰减变化规律，并进一步得到了相速度、质点速度在时间域和频率域的变化关系。

Salt is good, but if the salt becomes flat and tasteless, with what do you season it?

14：33 盐本是好的，盐若失了味，可用什么叫它再咸呢？

He reiterated that the PLA is an army of the people under the leadership of the Communist Party of China.

他重申，人民解放军是在中国共产党领导下的人民军队。